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Hydrometeorological Automated Data System (HADS) Data

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Hydrometeorological Automated Data System (HADS) Data

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Meteorological Assimilation Data Ingest System (MADIS) operated by NCEP Central Operations (NCO

Publication date
1997-01-01
Topics
"climate", "climate change", "National Oceanic and Atmospheric Administration", "National Centers for Environmental Information", "NOAA", "NCEI", "NOAA Climate Data Record (CDR) Program", "hydrology", "meteorology", "GOES", "NESDIS", "HADS"
Language
English
Item Size
81.4G
The Hydrometeorological Automated Data Systems (HADS) is a real-time data acquisition, processing, and dissemination system running as part of the Meteorological Assimilation Data Ingest System (MADIS) operated by NCEP Central Operations (NCO). The system exists in support of National Weather Service (NWS) activities of national scope, specifically the Flood and Flash Flood Warning programs administered by the Weather Service Forecast Offices and the operations performed at River Forecast Centers throughout the United States. Additionally HADS created data products bolster several other NWS program areas including fire weather support services, local and national analysis of precipitation events, hydrological and meteorological modeling, and the verification of NEXRAD precipitation estimates and hydrological models.

HADS acquires raw hydrological and meteorological observation messages from Geostationary Operational Environmental Satellites (GOES) Data Collection Platforms (DCPs). The data originates from DCPs owned and/or operated by more than 200 cooperators and a small network of NWS DCPs. The majority of the data acquired and processed by HADS comes from DCPs owned and/or operated by the Water Resources Division of the U.S. Geologic Survey, the U.S. Army Corps of Engineers, the Tennessee Valley Authority, the Bureau of Land Management, the U.S. Forest Service, the Bureau of Reclamation, and departments of natural resources from numerous state and local agencies throughout the country. In return the NWS shares other hydrological and meteorological products and information with these agencies.

The National Environmental Satellite, Data Information Service (NESDIS), an agency within NOAA, operates and maintains the GOES Data Collection System (DCS) in support of the NWS and the cooperating agencies (HADS Cooperators). The GOES DCS is physically located at the Wallops Island, Virginia Flight Facility. The facility is responsible for downlinking the data from the GOES satellites and relaying the data to HADS as well as to the larger DCS community. The data is available to HADS via Local Readout Ground Station (LRGS) software as well as a file transfer through a dedicated circuit to the National Weather Service Telecommunication Gateway (NWSTG).

HADS uses LRGS as its primary data feed. The data are received in a nearly continuous flow from Wallops Island and the USGS EDDN through LRGS communications. HADS pulls the data every 5-8 seconds and buffers this data and processes this data on 2 minute cycles. The processing involves the translation of the raw data into Standard Hydrometeorological Exchange Format (SHEF) products. This translation of raw data to SHEF products is a rather complicated process that requires detailed and very descriptive information for every one of the more than 17,500 data sites in this processing environment.
Addeddate
2025-03-16 21:20:33
Identifier
nws-hydrometeorological-automated-data-system
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